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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>log</a>::<wbr><a class="trait" href=''>Log</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust trait'>pub trait Log: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> {
    fn <a href='#tymethod.enabled' class='fnname'>enabled</a>(&amp;self, metadata: &amp;<a class="struct" href="../log/struct.LogMetadata.html" title="struct log::LogMetadata">LogMetadata</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
<div class='item-spacer'></div>    fn <a href='#tymethod.log' class='fnname'>log</a>(&amp;self, record: &amp;<a class="struct" href="../log/struct.LogRecord.html" title="struct log::LogRecord">LogRecord</a>);
}</pre><div class='docblock'><p>A trait encapsulating the operations required of a logger</p>
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            <h2 id='required-methods'>Required Methods</h2>
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        <h3 id='tymethod.enabled' class='method'><span id='enabled.v' class='invisible'><code>fn <a href='#tymethod.enabled' class='fnname'>enabled</a>(&amp;self, metadata: &amp;<a class="struct" href="../log/struct.LogMetadata.html" title="struct log::LogMetadata">LogMetadata</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Determines if a log message with the specified metadata would be
logged.</p>

<p>This is used by the <code>log_enabled!</code> macro to allow callers to avoid
expensive computation of log message arguments if the message would be
discarded anyway.</p>
</div><h3 id='tymethod.log' class='method'><span id='log.v' class='invisible'><code>fn <a href='#tymethod.log' class='fnname'>log</a>(&amp;self, record: &amp;<a class="struct" href="../log/struct.LogRecord.html" title="struct log::LogRecord">LogRecord</a>)</code></span></h3><div class='docblock'><p>Logs the <code>LogRecord</code>.</p>

<p>Note that <code>enabled</code> is <em>not</em> necessarily called before this method.
Implementations of <code>log</code> should perform all necessary filtering
internally.</p>
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